H01J 9/14
Of non-emitting electrodes
Official title: of non-emitting electrodes
H01J9/14 (Of non-emitting electrodes) appears on 612 US grants and 210 published applications in this corpus.
Search patents in H01J- Granted patents
- 612
- Published applications
- 210
- Assignees
- 215
- Inventors
- 1,068
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 5 | 0 |
| 1978 | 13 | 0 |
| 1979 | 9 | 0 |
| 1980 | 13 | 0 |
| 1981 | 11 | 0 |
| 1982 | 15 | 0 |
| 1983 | 11 | 0 |
| 1984 | 19 | 0 |
| 1985 | 10 | 0 |
| 1986 | 13 | 0 |
| 1987 | 18 | 0 |
| 1988 | 15 | 0 |
| 1989 | 17 | 0 |
| 1990 | 20 | 0 |
| 1991 | 14 | 0 |
| 1992 | 24 | 0 |
| 1993 | 15 | 0 |
| 1994 | 13 | 0 |
| 1995 | 16 | 0 |
| 1996 | 21 | 0 |
| 1997 | 20 | 0 |
| 1998 | 23 | 0 |
| 1999 | 12 | 0 |
| 2000 | 31 | 0 |
| 2001 | 26 | 9 |
| 2002 | 17 | 23 |
| 2003 | 25 | 18 |
| 2004 | 22 | 26 |
| 2005 | 16 | 19 |
| 2006 | 13 | 19 |
| 2007 | 11 | 9 |
| 2008 | 6 | 4 |
| 2009 | 6 | 6 |
| 2010 | 6 | 5 |
| 2011 | 4 | 5 |
| 2012 | 4 | 3 |
| 2013 | 2 | 6 |
| 2014 | 5 | 6 |
| 2015 | 7 | 5 |
| 2016 | 3 | 10 |
| 2017 | 10 | 8 |
| 2018 | 8 | 4 |
| 2019 | 3 | 2 |
| 2020 | 3 | 5 |
| 2021 | 4 | 5 |
| 2022 | 4 | 2 |
| 2023 | 3 | 4 |
| 2024 | 2 | 3 |
| 2025 | 3 | 0 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Charged particle optics components and their fabrication13 Jan 2026US 12,525,422 B2FEI Company
- Plasma processing apparatus, method for manufacturing upper electrode assembly, and method for reproducing upper electrode assembly9 Dec 2025US 12,494,351 B2Tokyo Electron Limited
- Bi-metallic anode for amplitude modulated magnetron11 Mar 2025US 12,249,476 B2Muons, Inc.
- Field emission cathode device and method of forming a field emission cathode device25 Feb 2025US 12,237,139 B2NCX Corporation
- Methods of making a self-assembled slow-wave structures17 Sep 2024US 12,091,746 B2The Regents of the University of New Mexico
- Rotating anode for x-ray tube, x-ray tube, x-ray inspection apparatus, and method for manufacturing rotating anode for x-ray tube9 Jul 2026US 2026/0196436 A1Niterra Materials Co., Ltd.
- Cooled anodes, x-ray tubes, and methods of forming the same7 May 2026US 2026/0128250 A1Varex Imaging Corporation
- Electron emission source including high-density carbon structure-based film, method for manufacturing the same, and x-ray tube using the same2 Apr 2026US 2026/0094782 A1Lmx Co., Ltd.
- Field emitter and method for manufacturing same15 Jan 2026US 2026/0018362 A1Suzhou Institute of Nano-Tech and Nano-Bionics (Sinano) , Chinese Academy of Sciences
- Bi-metallic anode for amplitude modulated magnetron8 Aug 2024US 2024/0266135 A1Muons, Inc.
Most cited
By later US patents
- Etching method using a hardened PVA stencil122US 4,339,528 ARCA Corporation · 1982
- Carbon nanotube coated anode91US 6,645,628 B2The United States of America as represented by the Secretary of the Air Force · 2003
- Internal support structure for flat panel device76US 5,589,731 ASilicon Video Corporation · 1996
- Structure of light-emitting device with raised black matrix for use in optical devices such as flat-panel cathode-ray tubes68US 5,477,105 ASilicon Video Corporation · 1995
- Transfer sheet, and pattern-forming method59US 6,207,268 B1Dai Nippon Printing Co.Ltd. · 2001